> cannot find the article at the moment, but there was one discussed on hacker news recently that mentioned a privacy device for telephones before the 1950s th

> cannot find the article at the moment, but there was one discussed on hacker news recently that mentioned a privacy device for telephones before the 1950s that achieved the same effect as cupping your hands over the receiver so that others in the room could not hear what you were saying into it. If programming by voice takes off, I imagine such a thing would be a necessity to keep office environments sane. Or maybe we'd all get private offices with decent sound-proofing. Hmmm … that's not going to happen.